LONDON, May 16 (Reuters) - The new boss of BT set out a path to more than double free cash flow over the next five years on Thursday and potentially dispose of its global business as it focuses on Britain, where it is investing in its fibre and 5G networks.

Allison Kirkby, who previously led Sweden's Telia, said BT would increase its dividend for the 2024 financial year by 3.9% to 8 pence a share after free cash flow beat expectations.

"We are sharpening our focus to be better for our customers and the country, by accelerating the modernisation of our operations, and by exploring options to optimise our global business," she said.

BT reported a 1% rise in full-year revenue to 20.8 billion pounds ($26.4 billion), helped by price rises and fibre-enabled product sales.

Adjusted core earnings rose 2% to 8.1 billion pounds, broadly in line with expectations, driven by its consumer and Openreach networks businesses.

($1 = 0.7888 pounds) (Reporting by Paul Sandle; editing by James Davey)